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Installation and servicing instructions for wall-mounted condensing gas boiler Buderus 600 - 11R/19R/24R • 02/2006
Buderus • http://www.buderus-domestic.co.uk
Subject to modifications resulting from technical improvements!
Servicing
5
5
Servicing
5.1
Operating codes
NOTE
If the code displayed on the burner-control
unit is not listed under the operating codes
or fault warnings, the burner-control unit
itself is malfunctioning.
Display
Display after
pressing the
service
button
Meaning
0
Buderus 600 - 11R / 19R / 24R is ready for operation
A
Burner interval circuit, 10 min. from burner start-up
H
Standby activated, Buderus 600 - 11R / 19R / 24R ready to provide heat
L
Initial safety period: self-testing of burner-control unit during burner start-up
U
Post- or pre-purging period of fan unit
Y
Flow temperature over set point
-.
Buderus 600 - 11R / 19R / 24R
running in heating mode
A
“Chimney-sweep” mode, flow-temperature controller by passed, Buderus 600 - 11R / 19R / 24R
heating to previously entered flow temperature.
H
Normal heating mode
Y
Service mode
r
Reset